Train Sim World: BR Class 31 Loco Add-On is a simulation title for PC that focuses on operating a specific diesel locomotive from British Railways history. Players take control of the BR Class 31, a Type 2 diesel developed in the 1950s as part of the shift away from steam power. The add-on places this locomotive on the Tees Valley Line, where it handles secondary passenger duties and lighter freight traffic in its original operating environment.
Gameplay
The core loop centers on realistic locomotive operation using the SimuGraph vehicle dynamics engine combined with Unreal Engine 4 technology. Drivers manage throttle, brakes, and other controls in highly detailed cabs that match the real 31/1 subclass, complete with steam heating boilers and headcode displays. Performance reflects the locomotive's actual power rating, which often required pairing units for freight work to avoid wheel slip on demanding sections. Sound design draws from authentic recordings of the real machines, capturing engine notes and mechanical details during acceleration, cruising, and stopping.
Route-specific elements include the Tees Valley Line, where the Class 31 works trains originating from areas like Thornaby Depot. A PCA Cement Tank Wagon is included for freight duties, allowing players to experience the locomotive's role in mixed traffic. Handling characteristics remain true to the prototype, with emphasis on careful power application and multiple-working compatibility when operating in pairs.
Game Modes
Three scenarios provide structured tasks on the Tees Valley Line, each designed around the locomotive's historical duties. An interactive training session introduces the cab layout, controls, and basic procedures before players attempt full runs. Timetable mode integrates the Class 31 into scheduled services, adding extra timetabled trains that increase overall traffic density on the route. These options support both focused practice and longer operational sessions without requiring external modifications.
Historical Context and Features
The BR Class 31 entered service in the Eastern Region before spreading nationwide, with 263 units eventually based at twelve depots. The 31/1 variant featured in this add-on represents the standard configuration used on lower-priority passenger and freight trains during the modernization era. Corporate Blue livery recreates the appearance from that period, while the included wagon supports authentic freight consists. Multiple subclasses existed over time, yet the add-on prioritizes the core 31/1 experience with its documented limitations and strengths.
Is It Worth Playing?
This add-on suits players interested in precise diesel locomotive simulation on a British regional route. It delivers the Class 31's documented performance traits, detailed cab interaction, and route integration through scenarios, training, and expanded timetables. Those seeking accurate handling and period-appropriate operations will find the content focused and consistent with the locomotive's real-world role. Availability on PC allows direct access for existing Train Sim World users who want to expand their fleet with this specific Type 2 diesel.
